This is one of the most realistic wargames out there. It has the best AI of any games I've played.
There is no micro-management of units as the AI will handle any subordinate units with great skill. The same AI as the enemy will really test you.
There are newer games using this engine available, Conquest of The Aegean ,which covers the 1941 battles in Greece, Crete and the hypothetical invasion of Malta (and includes NZ troops), and the soon to be released Battles for the Bulge, which covers the Battle of the Bulge in 1944.